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A body of mass 4 kg resting on a smooth horizon... - JAMB Physics 2008 Question

A body of mass 4 kg resting on a smooth horizontal plane is simultaneously acted upon by two perpendicular forces 6N and 8N. Calculate the acceleration of the motion
A
2.5 ms-1
B
3.0 ms-1
C
4.0 ms-1
D
4.5 ms-1
correct option: a

Smooth plane has negligible friction

∴ only the resultant of the perpendicular forces is acting on the body, which is given as

F =

√ 82 + 62 

=

√ 64 + 36 

=

√ 100 

= 10N

But F = Ma

∴ a = F/M = 10/4 = 2.5 ms-1

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